Ventilator sash unit



April 2l, 1953 R. F. HUNTER VENTILATOR sAsH UNIT 2 SHEETS--SHEET l FiledMarch 25, 1950 IN VEN TOR.

April 21, 1953 R. F. HUNTER VENTILATOR sAsH UNIT 2 SHEETS--SHEET 2 FiledMarch 25, 1950 Z'yf Patented Apr. 21, 1953 VENTILATOR SASH UNIT RichardFenley Hunter, Garden City, N. Y., assigner to Hunter Sash Company,Inc., Flushing, N. Y., a corporation of New York Application March 25,1950, Serial No. 151,934

The present invention relates to improvements in ventilators and relatesmore particularly, to a ventilator sash unit for use in a movingvehicle.

An object of the present invention is to provide a ventilator sash unitwhich may be installed in a space of limited thickness as a replacementfor the windows or panels in the sides and doors of a subway car orother moving vehicle and the installation of which will require little,if any, alteration of the vehicle. Another object of the invention is toprovide a ventilator sash unit which will assure positive and moreadequate ventilation in such vehicles than has heretofore been possible.A further object of the invention is to provide a ventilator sash unitfor a vehicle which, when closed, will be Weathertight under pressuresthat may be exerted against the ventilator tending to force waterthrough it such as when the vehicle is moving or when the moving vehicleenters a confined space such as a tunnel or subway.

Other objects and advantages of the invention will be apparent from thefollowing description and the accompanying drawings in which:

Fig. l is a plan view of a panel incorporating a ventilator sash unitembodying the present invention;

Fig. 2 is a section View taken along the line 2 2 of Fig. 1 on anenlarged scale;

Fig. 3 is a section View taken along the line 3 3 of Fig. 1 on anenlarged scale; and

Fig. 4 is a fragmentary view in section of a portion of the ventilatorsash unit illustrated in Fig. 3 but on a still larger scale.

Referring to the drawings in detail, there is a metal frame Il! havingan opening in which a ventilator, indicated generally at II, may bemounted. The metal frame I may be in the form or a panel of appropriatesize and shape to replace the windows or other removable sections in theside walls or doors of a moving vehicle such as a subway car. As shownbest in Fig, l, the metal frame I may also be provided with anotheropening in which a pane of glass l2 or another ventilator unit may bemounted, if desired. However, if desired, the ventilator unit may bemounted in place of a window directly in the Window sash and may occupythe entire window 0r a portion thereof.

As shown in Figs. 2 and 3, the construction of the edge of the metalframe I0 surrounding the opening in which the ventilator II is mountedis generally similar to a window sash in which a pane of glass isdemountably supported. The edge of the opening in the 4frame ischanneled and a 8 Claims. (Cl. 98-13) ange I3 extends around the openingon the inner side thereof. An abutment I4 extends inwardly of the frameat the base of the flange I3 and also extends around the opening in theframe I0.

Fitted within the opening defined in the frame I0, there are threeforaminous or slotted ventilator plates I5, I5, and Il. The ventilatorplates are supported on one side by the flange I3 with their edgesadjoining the abutment I4. A louver plate I8 having a series 0fvertically extending louvers I9 formed on the outer side thereof issuperimposed on the ventilator plate 'I that is on the outside of thevehicle. A molding strip 20 extends around the opening in the frame I0on the side opposite to the flange I3. The molding strip 25 has aportion engaging with the channeled edge of the frame and a portionengaging with the outer surface of the louver plate I8. The moldingstrip 20, thus, secures the ventilator plates in place in the opening inthe frame Il] and it may be designed to exert any desired pressureagainst the ventilator plates. The molding strip 2l! is made of acompressible material such as rubber and may be of the same general formas the strip shown and described in United States Letters Patent No.1,891,932, issued December 27, 1932, to Lytle G. Hunter for Mounting fora Panel.

The ventilator plates I5, I5, and il each have a series of narrow,elongated vertical openings or slots 2|, 22, and 23, respectively,therein. The two ventilator plates I5 and Il on the inside and outsideof the ventilator are held in fixed or stationary positions in the frameI@ and the slotted openings ZI and 25 in these plates, respectively, arein register or alignment. rlhe center ventilator plate I5 is movablerelative to the two stationary ventilator plates. The slotted openingsZ2 in the center ventilator plate IS may be of the same size and shapeas the openings in the fixed plates and are spaced so that they willregister with the openings in the stationary ventilator plates in oneposition of the movable plate I6. However, the center ventilator plateI5 is slidable lengthwise of the stationary ventilator plates I5 and I'Iby a distance sufficient to move the openings 22 therein out of registerwith and completely block the aligned openings 2I and 23 in the xedventilator plates I5 and I'I.

For the purpose of opening and closing the ventilator or adjusting it asdesired, a control knob 24 is secured to the plate I6 and extendsthrough a horizontal slot 25 in the stationary ventilator plate I5 onthe inside of the vehicle where it is accessible from within the vehiclefor adjusting 3 the ventilator as desired. 'I'he vertical louvers I9 onthe louver plate I8 may be of any desired length and are arranged sothat they extend over one or more of the slots in the ventilator plates.Each of the louvers I9 has an opening 26 along one of the vertical sidesthereof and a slotted opening 26a may also be provided at the lowerhorizontal edge of each of the louvers through' I5 and I'I at the topand bottom edges'of the movable center ventilator'plate I6. The spacerplates 28 serve as guides on Whichthecenter ventilator plate slides andone edge of the center ventilator plate rests Yonrlower spacer plate. By

varying the thickness of the spacer plates a suitable pressure will beexerted against the movable ventilator plate that will permit themovable plate I6 to slide easily, but which will hold it againstunintentional movement. The spacer plates 28 may be secured to one ofthe stationary ventilator plates for convenience of assembly.

In order to insure that there will be a weatherproof seal at the slottedopenings in the ventilator plates, a coating 29 of a flocked material isapplied to the surfaces of the stationary ventilator plates contactingwith the movable ventilator plate and also to the edges of the spacerplates. As shown best in Fig. 4, the .docked coating 29 is applied tothe inner-'surface of the stationary ventilator plate I'I'contactingwith the center plate I6 and the spacer plates 28.Vv` The coating 29 isalso applied to surfaces of the ventilator plate I5 and the edges of thespacer platesV 28 contacting with the center ventilator plate I6. Thecoating 29 is preferably made of a flocked material containing veryshort lengths of rayon thread that may be applied to the surfaces of theplates by spraying. Such a coating forms an effective watertight' sealbetween the ventilator plates and around the slotted openings thereinwhen the ventilator is closed or open, and it also permits the centerventilator plate I6 to move smoothly while providing sufficient frictionto hold the center ventilatorY plate I6 ata position where it is set.

When the ventilator is closed, a double labyrinth passage is providedthat is fully sealed and through which it is practically impossible forwater to pass even under pressure. This provides a weatherproofventilator that is especially suitable for use in a moving vehicle Wherepressures tending to force water resulting from rain or snow are exertedagainst the ventilator when the vehicle is moving. f

In the illustrated embodiment of the invention, the louvers I9 arestamped out as an integral part of the louver plate I8, but it will beunderstood that they may be formed individually and attached totheoutside of the stationary ventilator plate II in a suitable manner suchas by spot welding. In such an arrangement the rubber molding strip willbe indirect engagement with the stationary ventilator plate I1.

It is contemplated that a number of ventilators will be installed in avehicle with the vertical openings 26 in the louvers I9 on some of theventilators facing toward one end of the vehicle while on others theywill face toward the other end of the vehicle. With such an arrangementthe louvers facing the forwrd end of the vehicle will cause air to beforced into the vehicle while those facing the rear of the vehicle willfunction as ejectors to draw out the stale air from within the vehicleand thus, provide for positive ventilation and a continuous circulationof the air in the vehicle. Such an arrangement also permits theventilators to function regardless of which end of the vehicle is theforward end at any particular time.

The center or movable ventilator plate IB is preferably made vofstainless steel so that it will 'not rust or corrode and is preferablymade relatively thin. By making the movable ventilator plate thin, itwill conform readily to any irregularities present in the stationaryventilator plates and the edges of the slots therein will form cuttingedges that will. slice through ice or other obstacles which might enterthe slots of the ventilator and otherwise prevent movement of the centerplate. The stationary ventilator plates are preferably of sufficientthickness, as compared to the width of slots therein, to prevent personsfrom putting their ngers in the slots to such a depth that they caninterfere with or be injured by the movement of the center plate. In thedrawings, the! frame I 0, the stationary ventilator plates I5 and E1,the louver plate I8 and the spacer plates 28 have been cross-hatched toindicate aluminum, but any suitable material may be used for theseelements.

It will also be understood that various changes and modications may bemade in the embodiment of the invention illustrated and described hereinwithout ldeparting from the scope of the invention as dened 'by theclaims appended hereto.

I claim:

1. In a Ventilator sash unit for a moving vehicle, the combination of aframe extending in a vertical plane and having an opening therein, apair of spaced ventilator plates fitted within said opening, each ofsaid ventilator plates being stationary and having openings thereinaligned with corresponding openings in the other of said plates, spacersseparating said ventilator plates at the top and bottom edges thereof, acenter ventilator plate slidably mounted between the stationaryventilator' plates and supported on the bottom spacer, said center platehaving openings therein and being slidable between a position where saidopenings coincide with the openings ofthe `stationary ventilator platesand a position where the openings in the stationary ventilator platesare completely blocked by said center plate, a louver plate superimposedon the outer side of one of the stationary ventilator plates,v saidlouver plate having a series of spaced vertically extending louvers onthe outer side thereof, each of said louvers extending over at least oneof the openings in the stationary ventilator plates and having anopening along one of the' vertical sides thereof, and a strip ofcompressible material securing said ventilator plates inthe frame, saidstrip having a portion engaging with the frame and a portion exertingpressure against the outer surface of one of the ventilator plates andurging it toward the other plate under pressure.

2. In a ventilator sash unit for a moving vehicle, the combination of aframe having an opening'therein, a pair of ventilator plates supportedin fixed positions in said opening, each of said ventilator plateshaving openings therein aligned with corresponding openings in the otherof said plates, spacing means interposed between said plates at the topand bottom edges thereof for maintaining said plates in spaced relationto each other, a center ventilator plate slidably mounted between saidpair of ventilator plates, said center plate having openings therein andbeing slidable between a position where said openings coincide with theopenings of the fixed ventilator plates and a position where theopenings in said fixed ventilator plates are completely blocked by saidcenter plate, an operating member carried by the center ventilatingplate and extending through a slotted opening in the inner of said fixedventilator plates, a coating of a flocked material applied to the innersurfaces of the xed ventilator plates and contacting with the opposingsurfaces of the center ventilator plate and a louver plate located onthe outside of the outer of said xed plates, said last-mentioned platehaving a series of spaced vertically extending louvers on the outer sidethereof, each of said louvers extending over at least one of theopenings in the fixed ventilator plates and having an opening along oneof the vertical sides thereof.

3. In a ventilator sash unit for a moving vehicle the combination asdeined in claim 2 which includes a strip of compressible materialextending around the opening in the frame and removably holding theVentilating unit in place in the frame, said strip having a portionengaging with the frame and a portion exerting inward pressure againstsaid xed ventilator plates.

4. In a ventilator unit adapted for mounting in an opening having achanneled edge in the side of a moving vehicle, the combination of apair of stationary ventilator plates extending across an opening in avehicle, one of said plates being located on the inside of the vehicleand the other of said plates being located on the outside of thevehicle, each of said plates having a series of spaced openings thereinregistering with corresponding openings in the other of said plates,spacing means interposed between said plates, a center ventilator plateslidably mounted between said stationary ventilator plates, said centerplate having a series of spaced openings therein and being slidablebetween a position where said openings coincide with the openings in thestationary ventilator plates and a position where the openings in thestationary ventilator plates are completely blocked by said centerplate, an operating member carried by the center plate and extendingthrough a slotted opening in the inner stationary plate, a series ofspaced vertical louvers located on the outside of the outer stationaryplate, each of said louvers extending over at least one of the openingsin the outer stationary plate and having an opening along one of thevertical sides thereof and compressible strip means for securing theunit in the opening in the vehicle, said means having a portion urgingthe outer stationary plate inwardly under pressure and a portionengaging with a channeled edge of the opening in the vehicle.

5. In a ventilator unit, the combination as defined in claim 4 whichincludes a coating of flocked material applied to at least one of theopposing surfaces of the stationary ventilator plates and the centerplate, said coating being in contact under pressure with the other ofsaid opposing surfaces.

6. In a ventilator sash unit, the combination as dened in claim 4wherein the spacing means comprises members extending lengthwise of thestationary plates at the top and bottom edges thereof on the centerplate is slidably guided in movement between the stationary plates.

7. In a ventilator sash unit for a moving vehicle, the combination of aframe having a channeled edge defining an opening therein and a flangeextending around said opening, a pair of stationary ventilator platesextending across said opening with one of said plates bearing againstsaid flange, each of said plates having openings therein aligned withcorresponding openings in the other of said plates, spacing meansinterposed between said plates at the edges thereof, a center plateslidably mounted between said pair of ventilator plates, said centerplate having openings therein corresponding to the openings in the pairof ventilator plates and being movable between a position where theopenings therein coincide with the openings of the stationary plates anda position where the openings in the stationary plates are completelyblocked by solid portions of said center plate, an operating membercarried by the center plate and extending through a slotted opening inthe stationary plate located on the inside of the vehicle, a platehaving a series of spaced louvers therein located on the outer side ofthe stationary plate on the outside of the vehicle, each of said louversextending over at least one of the openings in the stationary plate andhaving an opening along one of the vertical sides thereof andcompressible strip means removably securing the ventilator unit in theframe, said strip means having a portion fitted within the channelededge of the frame and a portion resiliently engaging with the outside ofthe louver plate, said last-mentioned portion urging the louver plateand the Ventilator plates together and against the flange underpressure.

8. In a ventilator sash unit for a moving vehicle, the combination asdefined in claim 7 which includes a coating of a flocked materialapplied to at least one of the opposing surfaces of the stationaryventilator plates and the center ventilator plate, said coatingcontacting with the other of said opposing surfaces and forming aweathertight seal between the ventilator plates and the center plate.

RICHARD FENLEY HUNTER.

References Cited in the le of this patent UNITED STATES PATENTS NumberName Date 1,343,576 Neilson June l5, 1920 1,525,429 Hunter Feb. 3, 19251,706,026 Goldsmith et al. Mar. 19, 1929 1,797,915 Hockstein Mar. 24,1931 1,891,932 Hunter Dec. 27, 1932 2,169,713 Stroud Aug. 15, 19392,354,466 Levinsen July 25, 1944 2,443,676 Cosper June 22, 19482,498,966 Sauer Feb. 28, 1950

